Repair Procedures: Removal

Turn the ignition switch OFF.
Pull up the lock of the HECU connector, then disconnect the connector.

Fig 1: Identifying HECU Connector Lock
Courtesy of HYUNDAI MOTOR AMERICA
Disconnect the brake tubes from the HECU by unlocking the nuts counter-clockwise with a spanner.
Tightening Torque:

ABS: 13.7 ~ 16.7 N.m (1.4 ~ 1.7 kgf.m, 10.1 ~ 12.3 lb-ft)

Fig 2: Disconnecting Brake Tubes
Courtesy of HYUNDAI MOTOR AMERICA
Loosen the HECU bracket bolts, then remove HECU and bracket.
Tightening Torque:

19.6 ~ 29.4 N.m (2.0 ~ 3.0 kgf.m, 14.5 ~ 21.7 lb-ft)

Fig 3: Loosening HECU Bracket Bolts
Courtesy of HYUNDAI MOTOR AMERICA
NOTE:
1. NEVER attempt to disassemble the HECU.
2. The HECU must be transported and stored in.
3. NEVER shock to the HECU.
Loosen the bracket bolts, then remove the bracket from HECU.
Tightening Torque:

5.9 ~ 9.8 N.m (0.6 ~ 1.0 kgf.m, 4.3 ~ 7.2 lb-ft)

Fig 4: Loosening Bracket Bolts
Courtesy of HYUNDAI MOTOR AMERICA